common/host-side/tradefed/src/com/android/compatibility/common/tradefed/result/suite/PreviousResultLoader.java

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.compatibility.common.tradefed.result.suite;

import com.android.compatibility.common.tradefed.build.CompatibilityBuildHelper;
import com.android.compatibility.common.tradefed.testtype.retry.RetryFactoryTest;
import com.android.compatibility.common.util.ResultHandler;
import com.android.tradefed.build.IBuildInfo;
import com.android.tradefed.config.Option;
import com.android.tradefed.invoker.IInvocationContext;
import com.android.tradefed.invoker.InvocationContext;
import com.android.tradefed.invoker.TestInvocation;
import com.android.tradefed.invoker.proto.InvocationContext.Context;
import com.android.tradefed.result.proto.TestRecordProto.TestRecord;
import com.android.tradefed.testtype.suite.retry.ITestSuiteResultLoader;

import com.google.protobuf.InvalidProtocolBufferException;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * Implementation of {@link ITestSuiteResultLoader} to reload CTS previous results.
 * <p/>
 * TODO(110265525): Add the fingerprint validation
 */
public class PreviousResultLoader implements ITestSuiteResultLoader {

    @Option(name = RetryFactoryTest.RETRY_OPTION,
            shortName = 'r',
            description = "retry a previous session's failed and not executed tests.",
            mandatory = true)
    private Integer mRetrySessionId = null;

    private TestRecord mTestRecord;

    @Override
    public void init(IInvocationContext context) {
        IBuildInfo info = context.getBuildInfos().get(0);
        CompatibilityBuildHelper helperBuild = new CompatibilityBuildHelper(info);
        try {
            File resultDir = ResultHandler.getResultDirectory(
                    helperBuild.getResultsDir(), mRetrySessionId);
            try (InputStream stream = new FileInputStream(
                    new File(resultDir, CompatibilityProtoResultReporter.PROTO_FILE_NAME))) {
                mTestRecord = TestRecord.parseDelimitedFrom(stream);
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public String getCommandLine() {
        Context context = null;
        try {
            context = mTestRecord.getDescription().unpack(Context.class);
        } catch (InvalidProtocolBufferException e) {
            throw new RuntimeException(e);
        }
        IInvocationContext invocContext = InvocationContext.fromProto(context);
        
        List<String> command = invocContext.getAttributes().get(
                TestInvocation.COMMAND_ARGS_KEY);
        if (command == null) {
            throw new RuntimeException("Couldn't find the command line arg.");
        }
        return command.get(0);
    }

    @Override
    public TestRecord loadPreviousRecord() {
        return mTestRecord;
    }
}